<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <audio src="DP.mp3" controls="controls"></audio>
    <form action="">
        <input type="text" required="required" placeholder="请输入"> <input type="submit" value="提交">
    </form>
</body>
</html>